Interference-mediated modulation of spin waves

The modulation of propagating spin wave amplitude in Ni sub(18) Fe sub(19) (Py) films, resulting from constructive and destructive interference of spin wave, has been demonstrated. Spin waves were excited and detected inductively using pulse-inductive time domain measurements. Two electrical impulse...

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Published in:Physical review. B, Condensed matter and materials physics Condensed matter and materials physics, 2012-06, Vol.85 (22), Article 224408
Main Authors: Mukherjee, Sankha Subhra, Kwon, Jae Hyun, Jamali, Mahdi, Hayashi, Masamitsu, Yang, Hyunsoo
Format: Article
Language:English
Subjects:
Amplitudes
Condensed matter
Gaussian
Magnetic fields
Modulation
Spin waves
Tuning
Wave propagation
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description The modulation of propagating spin wave amplitude in Ni sub(18) Fe sub(19) (Py) films, resulting from constructive and destructive interference of spin wave, has been demonstrated. Spin waves were excited and detected inductively using pulse-inductive time domain measurements. Two electrical impulses were used for launching two interfering Gaussian spin wave packets in Py films. The applied bias magnetic field or the separation between two pulses was used for tuning the amplitude of the resulting spin wave packets. This may thus be useful for spin wave based low-power information transfer and processing.
doi_str_mv 10.1103/PhysRevB.85.224408
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subjects Amplitudes
Condensed matter
Gaussian
Magnetic fields
Modulation
Spin waves
Tuning
Wave propagation
title Interference-mediated modulation of spin waves
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